213121331320022 has 16 divisors (see below), whose sum is σ = 336508184587200. Its totient is φ = 100951963769160.

The previous prime is 213121331320021. The next prime is 213121331320033. The reversal of 213121331320022 is 220023133121312.

It is a junction number, because it is equal to n+sod(n) for n = 213121331319973 and 213121331320000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213121331320021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9490697 + ... + 22722587.

It is an arithmetic number, because the mean of its divisors is an integer number (21031761536700).

Almost surely, 2^{213121331320022} is an apocalyptic number.

213121331320022 is a deficient number, since it is larger than the sum of its proper divisors (123386853267178).

213121331320022 is a wasteful number, since it uses less digits than its factorization.

213121331320022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13655771.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 213121331320022 its reverse (220023133121312), we get a palindrome (433144464441334).

The spelling of 213121331320022 in words is "two hundred thirteen trillion, one hundred twenty-one billion, three hundred thirty-one million, three hundred twenty thousand, twenty-two".